Car Seat with Convertible Bottom

ABSTRACT

A car seat is configured to rest on a vehicle seat and to support a child. The car seat has a shell with a front side, a rear side, a seat back end, a seat bottom end, and a seating surface with a seat back portion and a seat bottom portion. A first contact surface is defined on a part of the car seat facing generally opposite the seat bottom portion. Adapter bodies are carried on the car seat. Each adapter body defines a second contact surface and is movable between a stowed position in which the first contact surface is exposed and positioned to rest on the vehicle seat with the seating surface at a first incline and a deployed position in which second contact surfaces are exposed and positioned to rest on the vehicle seat with the seating surface at a second incline different than the first incline.

RELATED APPLICATION DATA

This patent application is a continuation of U.S. non-provisionalapplication Ser. No. 12/275,637, filed Nov. 21, 2008 and entitled “CarSeat with Convertible Bottom,” which is hereby incorporated by referenceherein in its entirety and which claimed priority to U.S. provisionalapplication Ser. No. 60/989,490, filed Nov. 21, 2007 and entitled “CarSeat with Convertible Bottom,” which is also hereby incorporated byreference herein.

BACKGROUND OF THE INVENTION

1. Field of the Disclosure

The present disclosure is generally directed to infant or children's carseats, and more particularly to a car seat with a bottom that can beconverted so as to adjust the incline angle of the seat.

2. Description of Related Art

Car seats are known in the art that can be converted from rear facinginfant car seats to forward facing older infant or toddler seats. Themechanisms and methods currently used to allow conversion of such knowncar seats have a number of problems and disadvantages. In one example, adiscrete device may be provided that is manually slipped under the seatat one end or the other in order to change the seat incline angle. Thistype of device can move around during use and is susceptible to beingimproperly placed or positioned under the seat. This type of device canalso be misplaced or lost, making it unavailable when one needs ordesires to change the seat incline and/or seat facing direction of thecar seat.

In another example, a stand leg is provided on some car seats under orbehind the seat bottom and near the back end of the seat. The typicalstand leg can either be pivoted rearward or slid downward from a stowedposition located under or behind the seat bottom to an extended positionprojecting downward from the bottom of the car seat (see FIG. 10). Withthe stand leg stowed under the seat bottom, the seat bottom surfacesrest flush on a vehicle seat, typically with the car seat oriented in arear facing position. With the stand leg extended, the car seat can bereoriented and turned around, typically to a forward facing position.However, the car seat rests only on the stand leg and a front edge ofthe car seat bottom surface.

The pivotable-type stand leg of this type of prior art seat oftenrotates about an axis that is oriented perpendicular to the longitudinalor front-to-back center axis of the car seat. In the forward seat facingorientation, the contact area between the car seat and the vehicle seaton which it rests is compromised. This limited surface-to-surfacecontact can adversely affect the stability of the seat during use in theforward facing orientation and also can affect crash test results. Thestand leg may also not be particularly stable on some car seats. Thepivot axis also is oriented perpendicular to the normal direction of avehicle's movement and thus some stand legs could unintentionally rotatefrom the extended position during sudden deceleration of the vehicle ora sudden change in the vehicle's momentum. The stand leg on some priorart car seats, when extended, are used to create the rearward seatfacing orientation and, when stowed, to create the forward seat facingorientation. However, the stand leg may have an adverse affect on theseat performance in at least one of the two seat orientations. A numberof car seat manufacturers have used this type of stand leg with alaterally or transversely oriented pivot axis.

Other manufacturers sometimes use much more complex two-position basesonto which a car seat can be mounted. Such bases typically have onesection that can be slid or pivoted relative to another section in orderto alter the seat incline when mounted to the base. These types of twoposition bases typically have a significant number of parts which can bemore complex to adjust when in use and more difficult and time-consumingto assemble and to convert from one seat incline to the other. Thus,such car seats can also be more expensive to manufacture and more costlyfor the consumer.

BRIEF DESCRIPTION OF THE DRAWINGS

Objects, features, and advantages of the present invention will becomeapparent upon reading the following description in conjunction with thedrawing figures, in which:

FIG. 1 shows a perspective view of one example of a car seat constructedin accordance with the teachings of the present invention and arrangedwith convertible feet in a deployed position.

FIG. 2 shows an underside, fragmentary, exploded view of the car seatdepicted in FIG. 1.

FIG. 3 shows a bottom perspective view of the car seat in FIG. 1.

FIG. 4 shows a side view of the car seat in FIG. 3.

FIG. 5 shows a fragmentary rear view of the car seat in FIG. 1 andviewed from the direction of the arrows V-V in FIG. 3.

FIG. 6 shows the car seat in FIG. 5, but with the convertible feet in astowed position and viewed from the direction of the arrows VI-VI inFIG. 7.

FIG. 7 shows a bottom perspective view of the car seat in FIG. 6.

FIG. 8 shows a side view of the car seat in FIGS. 1 and 3-5 installed ona vehicle seat in a forward seat facing orientation.

FIG. 9 shows a side view of the car seat in FIGS. 6 and 7 installed on avehicle seat in a rear seat facing orientation.

FIG. 10 shows a side view of a representative prior art car seat with astand leg in an extended position and installed on a vehicle seat.

DETAILED DESCRIPTION OF THE DISCLOSURE

A convertible car seat is disclosed herein that solves or improves uponone or more of the above noted and/or other problems and disadvantageswith prior art car seats. The disclosed car seat employs adapter bodiesor feet on the bottom of the seat, which can move between a stowedposition and a deployed position. In one example, the bodies can berotated about an axis that is oriented longitudinally, i.e., front toback, relative to the car seat so that the adapter bodies pivot side toside. This orientation renders the car seat and adapters more stableduring use within a vehicle. The disclosed adapters also create orexpose relatively sizeable support or contact surfaces, both whendeployed and when stowed. This can result in a stable car seat whetherinstalled on a vehicle seat in a forward or rearward seat facingorientation. The disclosed car seat is also relatively easy to convertbetween one orientation with the adapters stowed and another orientationwith the adapters deployed. These and other objects, features, andadvantages of the present invention will become apparent upon readingthe following disclosure and reviewing the accompanying drawing figures.

Turning now to the drawings, FIG. 1 illustrates a car seat 20constructed in accordance with the teachings of the present invention.In general, the car seat 20 in this example has a seat shell 22 with atop or front side 24 and a bottom or underside 26. A seating surface isdefined on the front side 24. A conventional car seat typically has aseating surface with a seat back surface 28 to support a child's backduring use and a seat bottom surface 30 to support the child's derriereand legs during use. With reference to FIG. 1, the car seat 20 thus hasa seat back end 32 that corresponds to the location of the seat backsurface 28 and a seat bottom end 34 that corresponds to the location ofthe seat bottom surface 30.

A typical car seat generally has a number of additional components andelements, which have been removed from the illustrations presentedherein to simplify the description relating hereto. For example, atypical car seat might include a seat harness, anchor straps, buckles,and soft goods covering at least the seating surface of the shell 22.These elements have no bearing on the scope and spirit of the presentinvention and are thus not disclosed or described herein. In addition,the disclosed car seat 20 represents one of many possible alternate carseat examples for which the disclosed invention may be well suited. As aresult, the car seat 20 can vary from that disclosed and describedherein and yet fall within the spirit and scope of the presentinvention. These variations can include size, shape and contour,component construction, material usage, manufacturing processes, and thelike. The shell 22 in the disclosed example is a plastic moldedstructure that may be assembled from several plastic or othersub-components to create the car seat, as is known in the art. Thesefeatures of the car seat 20 can also vary within the spirit and scope ofthe present invention.

Returning to FIG. 1, the car seat 20 includes an underside structuredepending generally downward beneath the seat bottom surface 30. Thisunderside structure is formed having a closed front wall 40 on the carseat 20 and a pair of stand-offs 42 arranged front to back from theclosed front wall beneath the seat bottom surface 30. In the disclosedexample, the stand-offs 42 are generally parallel to one another andextend downward relative to the seat bottom surface 30 in the directionof the underside 26. The stand-offs 42 are positioned laterally spacedapart from one another across the shell 22. Each of the stand-offs 42 ispositioned generally beneath an arm rest section 44 on a correspondingside of the car seat 20. Each arm rest section 44 is positioned on aside of the seat bottom surface 30 and extends upward relative thereto,as is known in the art. In the disclosed example, each arm rest surface44 generally transitions into a side wing 46 that extends along arespective side edge of the seat back surface 28, as is also known inthe art. Again, these arm rest 44 and side wing 46 features can varyconsiderably, or be eliminated all together, on a car seat within thespirit and scope of the present invention.

FIG. 2 shows a partly exploded view of the underside 26 of the car seat20. Each of the stand-offs 42 is hollow in this example and has aninside wall 50, an outside wall 52, and a cavity 53 between thestand-off walls. An open space 54 is located in the gap between theinside walls 50 of the two stand-offs 42. Each inside wall 50 andoutside wall 52 has a bottom edge 56 and 58, respectively, in thisexample. A front section 60 on each of the stand-offs 42 is definedforward of an upward bend in the bottom edges 56 and 58. An edge portion62 on the inside walls 50 and an edge portion 64 on the outside walls ofthe front sections 60 forward of the bends are angled upwardly relativeto a plane S-S defined by the bottom edges 56 and 58 of the stand-offs.This can be seen generally in the side view of FIG. 4. The forwardregions 60 are also hollow and defined by the inside walls 50 andoutside walls 52. The edges 56, 58 and the edges 62, 64 of the frontregions 60 are oriented at an obtuse, oblique angle α of about 156° inthis example.

In accordance with the teaching of the present invention, a pair ofadapter bodies or feet 70 is moveably coupled to the underside of thecar seat 20. In this example, a pair of corresponding hinge plates 72 isattached to the bottom of the stand offs 42. The hinge plates areconfigured to connect the feet 70 to the stand-offs 42 and thus to theunderside 26 of the car seat 20. The disclosed hinge plates 72 areconfigured to cover a majority of the open cavities 53 on the bottoms ofthe stand-offs 42. The hinge plates 72 are also configured to defineattachment points for the pair of feet 70 as described below. In thisexample, the open bottoms at the front sections 60 on the stand-offs 42are not covered by the hinge plates and remain open, although the platescould readily be configured to cover the entire stand-off cavities.

Details of the shell 22, the feet 70, and the hinge plates 72 areillustrated and described herein with particularly reference to FIGS. 2,3, and 5. The bottom edges 56 on the inside walls 50 of the stand-offs42 has a plurality (three in this specific example) of recesses orcut-outs 80 formed into the edge. A pair of attachments tabs 82 aproject from an interior surface within the cavity 53 of the inside wall50 toward the outside wall 52. A pair of like tabs 82 b projects fromthe outside wall 52 across from, and extending toward, the tabs 82 a.Each pair of tabs 82 a and 82 b includes an upper tab and a lower tabspaced vertically apart from one another. The pairs of tabs 82 a and 82b are positioned adjacent the bend defining the front section 60 on thestand-offs 42. Each stand-off 42 also has a fastener receptacle 84positioned within the cavity 53 and between the inside wall 50 andoutside wall 52. The fastener receptacles are spaced rearward from thetab pairs and near a back end region 86 of the stand-offs. Each fastenerreceptacle 84 can be configured to accept a conventional threadedfastener or other suitable fastener.

With continued reference to FIGS. 2, 3, and 5, each hinge plate 72 has abottom surface 86 and an opposed top surface (not numbered or shownherein). The top surfaces face into the cavities 53 on the stand-offs 42when installed. A projecting lip 88 extends forward from a front edge oneach of the hinge plates 72. A recessed fastener guide 90 is formed onthe opposite, rear end of each hinge plate 72. Each fastener guide 90has a fastener hole 92 that aligns with a corresponding fastener hole 94defined within a corresponding one of the fastener receptacles 84 on theunderside 26 of the car seat 20.

Each of the hinge plates 72 can be easily installed on a respective oneof the stand-offs 42 in this example. The appropriate hinge plate 72 ispositioned over the cavity 53 on the bottom of the correspondingstand-off 42. The lips 88 each have a thinner wall thickness than theadjacent plate material. The lips are slid between the upper and lowertabs of each tab pair 82 a and 82 b and sandwiched or captured betweenthe tab pairs. The spacing of the upper and lower tabs of each pairallows the lips 88, but not the thicker plate, to slip between the tabs.The opposite ends of the hinge plates 72, including the fastener guides90, can then be moved toward the respective fastener receptacles 84,which will automatically align the respective fastener holes 92 and 94.Appropriate fasteners 96 can then be inserted to secure the hinge plates72 in position on the bottoms of the stand-offs 42. In this example, thebottom surface 86 on each of the fastener plates can be aligned flushwith the bottom edges 56 and 58 of the respective inside and outsidewalls 50, 52 when installed.

Also with reference to FIGS. 2, 3, and 5, three female hinge receptaclesor gudgeons 100 are spaced along and extend from an inner edge 102 oneach of the hinge plates 72 has there along. The quantity and positionof the female gudgeons 100 coincide with the number and location of therespective cut-outs 80 on the inside wall bottom edges 56 of thestand-offs 42. Each gudgeon 100 is integrally formed as a part of therespective hinge plate 72 in this example. Each female gudgeon 100 hasone or more integral trusses 104 and a flange connector 106 that connectthe gudgeon to the plate 72. The trusses 104 can be configured to giverigidity and structural integrity to the female gudgeons 100. The flangeconnectors 106 can also be configured with ridges, ribs, or the like toprovide same.

In this example, each of the female gudgeons 100 is elongate in an axialor lengthwise direction relative to the car seat. Each gudgeon isgenerally U-shaped in cross section with two opposed vertical legsincluding an inner leg 108 adjacent the edge 102 and an outer leg 110spaced outward from the inner leg. Each gudgeon 100 is open in an upwarddirection. The female gudgeons 100 on each plate 72 are axially alignedlongitudinally with one another as well. The gudgeons on each hingeplate thus create a pivot or rotation axis that is orientedfront-to-back on the underside 26 of the car seat 20. In this example,the legs 108, 110 of the gudgeons 100 each have a tooth 112, 114,respectively, that projects toward the other leg across the open top.For each female gudgeon 100, the tooth 112 on the inner leg 108 islocated at one end of the gudgeon and the tooth 114 on the outer leg 110is located at the opposite end of the gudgeon. Thus, though the teeth112, 114 project toward one another, they are not positioned directlyopposite one another. The teeth effectively created reduced widthopenings into the gudgeons 100. In this example, a closed bottom 116connects the legs 108, 110 to one another on each gudgeon. A window oropening is formed through each of the closed bottoms 116.

With reference to FIGS. 2-5 and 9, each adapter body or foot 70 has agenerally triangular shape as depicted in FIG. 4. Each foot has asupport or contact surface 120 and a lag side 122 generally opposite thecontact surface. The two sides 120, 122 meet at a front end or toe 124of the foot 70 and extend rearward, diverging from one another toward arear end 126 of the foot. The lag side 122 continues to the rear end 126and the contact surface 124 transitions gradually at a curved corner orheel 128 to a passive back surface 130. The back surface 130 continuesuntil meeting the lag side 122 at the rear end 126 on the foot. The lagside 122 and contact surface 120 are oriented at an angle β of about 24°in this example. The feet 70 in this example are also hollow with thelag side 122 being substantially open (see FIG. 7) and the contactsurface 120 being substantially closed. As shown in FIG. 7, the interiorof the feet have a plurality of laterally extending partitions or ribwalls to provide rigidity and structural integrity to the feet.

Each foot also has an inner hinge side 132 and an outer free side 134with the partitions or rib walls extending therebetween. A plurality ofhinge posts or pintles 136 are integrally carried on the hinge side 132of the feet 70. As shown in FIG. 2, a plurality of ribs 138 extendsalong and project from the outer surface of the hinge side 132. Each ofthe ribs 138 is also oriented vertically between the contact surface 120and the lag side 122. In this example, each pintle 136 is integrallyformed extending between adjacent pairs of the ribs 138. Each pintle 136is also positioned aligned with and spaced from an inner top edge 140 ofthe lag side 122 on the foot 70. Each pintle 136 is also orientedgenerally parallel with the lag side inner edge 140. The lag side 122 isnamed as such herein because it does not include much of a surface(i.e., it is substantially open to the foot interior) and because itlies adjacent the pintles 136. As the feet rotate, the contact surface,being spaced from the pintles 136, will swing through a substantial arcabout the pivot axis of the foot. In contrast, the lag side 122 willswing much slower and through a much smaller arc (i.e., will lag thecontact surface 120) being closely positioned to the pivot axis.

The pintles 136 can be formed to define a round or ovoid cross sectionthat is sized to seat, one each within a respective one of the gudgeons100. To install the feet, the pintles are positioned as shown in FIG. 2and then forcibly inserted between the teeth 112, 114 of a respectiveone of the gudgeons. The legs 108 and 110 of the gudgeons canresiliently flex sufficient to allow the pintles 136 to snap into place.The teeth 112, 114 will then retain the pintles 136 between the legs108, 110 of the gudgeons. Once installed, the pintles and gudgeonscreate pivotable hinges 142 along the inner side of the feet and thebottom edge of the inner walls 50 on the stand-offs 42. As will beevident to those having ordinary skill in the art upon reading thisdisclosure, the shape and features of the pintles and gudgeons can varyconsiderably and yet provide a suitable hinge function. These componentscan be configured in many different ways within the spirit and scope ofthe present invention.

Once installed, the feet 70 can be moved between a deployed position asdepicted in FIGS. 1-5 and 8 and a stowed position as depicted in FIGS.6, 7, and 9. In the deployed position, each foot 70 is pivoted about thehinge 142 to a position directly below a respective stand-off 42. Inthis position, the lag surfaces 122 on the feet bear against and coverthe bottoms of the stand-off, and specifically the portions includingthe hinge plates 72. This arrangement leaves the contact or supportsurfaces 120 on the feet exposed on the underside of the car seat. Asshown in FIG. 8, the car seat 20, with the feet deployed, can rest onthe contact surfaces of the feet 70. As shown in FIG. 5, each of thefeet 70 has a substantial width that is greater than a width of thestand-offs between the walls 50, 52, as shown in FIG. 5. Thus, with thefeet deployed, the car seat can rest on a very substantial base. In thisexample, the angles of the various surfaces of the feet and on thebottoms of the stand-offs are such that the contact surfaces 120 on thefeet lay generally coplanar with the bottom edges of the front sections60 on the stand-offs. This effectively extends the length of the contactor support surfaces on which the car seat can rest with the feet in thedeployed position.

As shown in FIGS. 6 and 7, the feet 70 can be pivoted about the hingeaxes to a stowed position. In this position, each foot is locatedessentially within the open space 54 between the stand offs 42 and at anelevation flush with or above the bottoms of the stand-offs. In thisposition, the bottoms of the stand-offs, including the hinge plates 72,are exposed as contact or support surfaces for the car seat 20. With thefeet 20 stowed, the car seat can be installed on a vehicle seat restingon the bottoms of the stand-offs 42. In this position, the frontsections 60 do not form part of the contact or support surfaces.

In the disclosed example, the car seat 20 rests on the feet while in theforward seat facing orientation as in FIG. 8. Thus, the feet areconfigures to alter the seating surface incline to a more uprightposition suitable for older infants and toddlers. The car seat 20 restson the stand-offs in the rear seat facing position of FIG. 9. Becausethe contact surface 120 and the lag surface 122 on the feet are at anangle of 24° in this example, the seating surface incline angle will bealtered by 24° between the deployed and stowed positions of the feet. Aswill be evident to those having ordinary skill in the art, the surfaceangles on both the car seat underside 26, including the stand-offs 42,and the feet 70 can vary from the 24° angle of this example. In oneexample, the angles on the feet can be within a range of about 20° toabout 30°. Also, the location, orientation, and configuration of thestand-offs and the feet can be altered while still achieving thebenefits of the present invention.

Aspects of the hinge components can also be altered and/or enhancedwithin the spirit and scope of the present invention. For example, thepintles can include surface dimples or projections that interact withribs or the windows 118 on the gudgeons in order to create snap locatorsor positional detents that assist in retaining the feet in the twoselectable positions. In other words, features can be added to thehinges 142 so that the feet will positively snap into the deployedposition and/or the stowed position. Further, the feet in this examplestow under the seat bottom and in the space between the stand-offs. Inalternate examples, the feet could pivot outward to a stowed positionand inward to a deployed position. It is also possible that one coulddesign a car seat within the spirit and scope of the present inventionwithin only one foot while falling within the scope of the invention.

In alternate examples, the feet need not necessarily cover the bottomsof the stand-offs in the deployed position, but instead can bepositioned adjacent the stand-offs on the inside or outside thereof ineach of the stowed or deployed positions. Still further, mountingstructure for the feet 70 can be integrally formed as a part of theunderside or bottom of the shell 22 instead of on removable hinge plates72 as disclosed in this example. Also, the standoffs 42 can have closedbottoms and yet still be configured for attachment of the hinge plates72 or other feet mounting structures.

Although in this example, the feet have a significant or substantiallength and width, other shapes and sizes can be employed on the feetwithin the spirit and scope of the present invention. Lengthy and widefeet can likely provide a more stable base on which the car seat restsduring use in a vehicle. Increased surface-to-surface contact betweenthe car seat and the vehicle seat can be achieved utilizing thedisclosed feet in both seat inclines and seat orientations. However, thefeet 70 can be altered and yet fall within the spirit and scope of thepresent invention. For example, the contact surface 120 can be shapedsimilar to a high heeled boot or shoe. Such a foot can have a heelsection and a toe section depending from a lag panel (i.e., a “sole” ofthe foot) located where the lag side 122 is positioned on the disclosedfeet 70. A gap can be positioned between the heel and toe of thealternate foot design. The heel and toe surfaces can contact the vehicleseat when deployed, with the sole or lag panel being spaced upward fromthe vehicle seat surface. In another example, the toe contact portioncould be eliminated. In yet another example, a plurality of dependingsegments could depend from a lag panel, each segment defining a contactsurface on a free end and the segments becoming gradually shorter from aheel end to a toe end.

Also, the feet are disclosed as being under the seat bottom in thisexample. In other examples, the feet can be moved more forward or morerearward on the car seat and yet function as intended, depending on thegeometry of the components. Further still, each foot is pivotable abouta rotation axis in this example that is generally aligned with a foreand aft axis of the car seat. It is possible that one could conceive ofa foot design with a rotation axis that is offset from the disclosedaxis orientation within the spirit and scope of the invention. It isalso possible that one could conceive of a multi-segment single footdesign that can achieve the objectives of the invention.

As noted above, the car seat 20 tilts further forward or more inclinedwith the feet deployed and further rearward or more reclined with thefeet stowed. It is possible to conceive of a foot and seat bottomgeometry wherein the reverse is achieved. In other words, the seat mightrecline with the feet deployed and incline with the feet stowed. Thedisclosed feet also allow the car seat to be used in both a forwardfacing or rear facing seat orientation with the feet either deployed orstowed. This allows the incline angle for a given seat orientation to beadjusted as well.

Although certain car seats, features, functions, and methods have beendescribed herein in accordance with the teachings of the presentdisclosure, the scope of coverage of this patent is not limited thereto.On the contrary, this patent covers all embodiments of the teachings ofthe disclosure that fairly fall within the scope of permissibleequivalents.

1. A car seat configured to rest on a vehicle seat and to support achild, the car seat comprising: a shell having a front side, a rearside, a seat back end, and a seat bottom end; a seating surface on thefront side and having a seat back portion and a seat bottom portion; afirst contact surface on a part of the car seat facing generallyopposite the seat bottom portion; and adapter bodies carried on the carseat with each adapter body defining a second contact surface, theadapter bodies movable between a stowed position in which the firstcontact surface is exposed and positioned to rest on the vehicle seatwith the seating surface at a first seat incline and a deployed positionin which the second contact surfaces are exposed and positioned to reston the vehicle seat with the seating surface at a second seat inclinedifferent than the first seat incline.
 2. A car seat according to claim1, wherein each adapter body comprises a toe and a heel that togetherdefine the second contact surface.
 3. A car seat according to claim 1,wherein the second contact surfaces are oriented at an oblique anglerelative to the first contact surface with the adapter bodies in thedeployed position.
 4. A car seat according to claim 1, furthercomprising: an underside of the car seat opposite the seat bottomportion; and an open space recessed upward in the underside, wherein theadapter bodies are positioned substantially in the open space in thestowed position.
 5. A car seat according to claim 1, wherein the adapterbodies conceal the first contact surfaces in the deployed position.
 6. Acar seat according to claim 1, wherein each adapter body is movablyconnected to a respective stand-off projecting from an underside of thecar seat opposite the seat bottom portion.
 7. A car seat according toclaim 6, wherein the adapter bodies pivot toward one another from thedeployed position to the stowed position into an open space between thestand-offs.
 8. A car seat according to claim 6, wherein the firstcontact surface includes a respective first contact surface portionlocated on a bottom of each of the stand-offs.
 9. A car seat accordingto claim 8, wherein a front section of the bottom on each of thestand-offs is oriented at an angle relative to the respective firstcontact surface portion and is aligned in a common plane with the secondcontact surface of a respective one of the adapter bodies when in thedeployed position.
 10. A car seat configured to rest on a vehicle seatand to support a child, the car seat comprising: a shell having a frontside, a rear side, a seat back end, and a seat bottom end; a seatingsurface on the front side having a seat back portion and a seat bottomportion; a first contact surface on a part of the car seat facinggenerally opposite the seat bottom portion; and an adapter body carriedon the car seat and defining a second contact surface, the adapter bodymovable between a stowed position in which the first contact surface isexposed and positioned to rest on the vehicle seat with the seat bottomportion at a first seat incline and a deployed position in which theadapter body covers the first contact surface and the second contactsurface is exposed and positioned to rest on the vehicle seat with theseat bottom portion at a second seat incline different than the firstseat incline.
 11. A car seat according to claim 10, wherein the secondcontact surface underlies the first contact surface when the adapterbody is in the deployed position.
 12. A car seat according to claim 10,wherein the adapter body is substantially within an open space in anunderside of the car seat on the rear side beneath the seat bottomportion when in the stowed position.
 13. A car seat according to claim12, further comprising: a pair of front-to-back elongate stand-offsprojecting from the underside and defining the open space therebetween;a pair of the first contact surfaces, one on a bottom of each of thestand-offs; and a pair of the adapter bodies, one being pivotallyconnected to each of the stand-offs.
 14. A car seat according to claim10, further comprising: two of the adapter bodies and two of the firstcontact surfaces, one of the two adapter bodies covering a respectiveone of the two first contact surfaces in the deployed position.
 15. Acar seat according to claim 10, wherein the adapter bodies each pivotabout an axis parallel to the orientation of the first contact surfaces.16. A car seat according to claim 10, wherein the adapter bodies pivottoward one another to the stowed position within an open space on therear side under the seat bottom portion of the seating surface.
 17. Acar seat comprising: a shell having a front side, a rear side, a seatback end, and a seat bottom end; a seating surface on the front sidehaving a seat bottom portion and a seat back portion; and means forsupporting the car seat on a vehicle seat with the seating surface at afirst seat incline, wherein the supporting means is reconfigurable tosupport the car seat on the vehicle seat with the seating surface at asecond seat incline different than the first seat incline.